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Sayed IR, Alfassam HE, El-Sayed MI, Abd El-Gaied IM, Allam AA, Abukhadra MR. Synthesis and characterization of chitosan hybridized zinc phosphate/hydroxyapatite core shell nanostructure and its potentiality as delivery system of oxaliplatin drug. Int J Biol Macromol 2024; 254:127734. [PMID: 37913876 DOI: 10.1016/j.ijbiomac.2023.127734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 09/17/2023] [Accepted: 10/14/2023] [Indexed: 11/03/2023]
Abstract
An advanced form of zinc phosphate/hydroxyapatite nanorods with a core-shell structure (ZPh/HPANRs) was made and then hybridized with chitosan polymeric chains to make a safe biocomposite (CH@ZPh/HPANRs) that improves the delivery structure of traditional oxaliplatin (OXPN) chemotherapy during the treatment of colorectal cancer cells. The qualifications of CH@ZPh/HPANRs in comparison with ZPh/HPANRs as a carrier for OXPN were followed based on loading, release, and cytotoxicity. CH@ZPh/HPANRs composite exhibits a notably higher OXPN loading capacity (321.75 mg/g) than ZPh/HPANRs (127.2 mg/g). The OXPN encapsulation processes into CH@ZPh/HPANRs display the isotherm behavior of the Langmuir model (R2 = 0.99) and the kinetic assumptions of pseudo-first-order kinetics (R2 > 0.89). The steric studies reflect a strong increment in the quantities of the free sites after the chitosan hybridization steps (Nm = 34.6 mg/g) as compared to pure ZPh/HPANRs (Nm = 18.7 mg/g). Also, the capacity of each site was enhanced to be loaded by 10 OXPN molecules (n = 9.3) in a vertical orientation. The OXPN loading energy into CH@ZPh/HPANRs (<40 KJ/mol) reflects physical loading reactions involving van der Waals forces and hydrogen bonding. The OXPN release profiles of CH@ZPh/HPANRs exhibit slow and controlled properties for about 140 h at pH 7.4 and 80 h at pH 5.5. The release kinetics and diffusion exponent (>0.45) signify non-Fickian transport and a complex erosion/diffusion release mechanism. The free CH@ZPh/HPANRs particles display a considerable cytotoxic effect on the HCT-116 cancer cells (9.53 % cell viability), and their OXPN-loaded product shows a strong cytotoxic effect (1.83 % cell viability).
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Affiliation(s)
- Islam R Sayed
- Materials Technologies and their Applications Lab, Geology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt; Geology Department, Faculty of Science, Beni-Suef University, Beni-Suef 65211, Egypt
| | - Haifa E Alfassam
- Princess Nourah bint Abdulrahman University, College of Science, Biology Department, Riyadh, Saudi Arabia
| | - Mohamed I El-Sayed
- Geology Department, Faculty of Science, Beni-Suef University, Beni-Suef 65211, Egypt
| | | | - Ahmed A Allam
- Zoology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Mostafa R Abukhadra
- Materials Technologies and their Applications Lab, Geology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt; Geology Department, Faculty of Science, Beni-Suef University, Beni-Suef 65211, Egypt.
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Zhao B, Li H, Tian K, Su Y, Zou Z. Synthesis and antitumor activity of bagasse xylan derivatives modified by graft-esterification and cross-linking. Int J Biol Macromol 2023; 253:126867. [PMID: 37730005 DOI: 10.1016/j.ijbiomac.2023.126867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 09/08/2023] [Accepted: 09/10/2023] [Indexed: 09/22/2023]
Abstract
A crucial aspect in achieving sustainable development of biomass materials is the modification of renewable polysaccharides to create various high-value functional materials. In this paper, bagasse xylan (BX) was used as a raw material to introduce benzyl methacrylate (BMA) through graft copolymerization reaction to generate the intermediate product BX-g-BMA. Subsequently, the target product (CA-BX-g-BMA) was synthesized by catalytic esterification of BX-g-BMA with citric acid (CA) in AmimCl ionic liquid. Meanwhile, the characterization and bioactivity studies of CA-BX-g-BMA were carried out. The graft copolymerization and esterification reactions induced significant changes in the morphological structure of BX and obviously improved its thermal stability and crystallinity. The application of density functional theory (DFT), molecular electrostatic potential (MEP) and molecular docking has revealed that CA-BX-g-BMA possesses multiple active sites, strong biological activity and a strong binding affinity to 6RCF tumor protein with a binding energy of -32.26 kJ/mol. The in vitro antitumor activity of this novel derivative was tested by MTT assay, and the results showed that CA-BX-g-BMA was non-toxic to normal cells and inhibited MDA-MB-231 (breast cancer cells) by up to 32.16 % ± 4.89 %, which is approximately 11 times higher than that of BX. The exploration of these properties is essential to promote future multidisciplinary applications of BX derivatives.
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Affiliation(s)
- Bin Zhao
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Heping Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
| | - Kexin Tian
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Yue Su
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Zhiming Zou
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
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Varzandeh M, Varshosaz J, Labbaf S, Esmaeil N. Sodium-borohydride exfoliated bismuthene loaded with Mitomycin C for chemo-photo-radiotherapy of triple negative breast cancer. Int J Pharm 2023; 636:122825. [PMID: 36921740 DOI: 10.1016/j.ijpharm.2023.122825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
In current study, a new remotely controlled drug delivery, radio-sensitizing, and photothermal therapy agent based on thioglycolic acid modified bismuth nanosheets is thoroughly evaluated. Bismuth nanosheets were synthesized using sodium borohydride (NaBH4) and Tween 20 through low energy (400 W) sonication within 2 h. The resultant nanosheets were 40-60 nm in size and 1-3 atomic layers in thickness. The morphological and structural characteristics of the nanosheets were studied using transmission electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction, Raman spectroscopy and ultraviolet spectroscopy. The surface of the nanosheets was modified using thioglycolic acid, which resulted in enhanced Mitomycin C loading capacity to 274.35% and circumvented the burst drug release due to the improved electrostatic interactions. At pH 7.4 and 5.0, the drug release was significantly boosted from 45.1 to 69.8%, respectively. Thioglycolic acid modified bismuth nanosheets under 1064 nm laser irradiation possessed photothermal conversion efficiency of η=51.4% enabling a temperature rise of 24.9 °C at 100 μg/ml in 5 min. The combination of drug delivery, photothermal therapy, and radio-sensitization greatly damaged the MDA-MB-231 cells through apoptosis and diminished their colony forming.
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Affiliation(s)
- Mohammad Varzandeh
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Jaleh Varshosaz
- Department of Pharmaceutics, School of Pharmacy and Novel Drug Delivery Systems Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sheyda Labbaf
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Nafiseh Esmaeil
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Sihan Yao, Wei L, Liu X, Ding A, Yao C. Study on Crystallization Behavior of Hydroxyapatite Regulated by Surfactant and Different Phosphorus Sources. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622601726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Esmaeili A, Moniri E, Safaeijavan R, Ahmad Panahi H. Green synthesis of AgNO3/glutathione nanoparticles by Eucalyptus Globulus extracts as a novel nanocarrier for using as drug delivery system: study of nonlinear isotherms and kinetics. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04583-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Mohammadzadeh V, Norouzi A, Ghorbani M. Multifunctional nanocomposite based on lactose@layered double hydroxide-hydroxyapatite as a pH-sensitive system for targeted delivery of doxorubicin to liver cancer cells. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu H, Liu S, Chen S, Hua Y, Li X, Zeng Q, Zhou Y, Yang X, Zhu X, Tu C, Zhang X. A Selective Reduction of Osteosarcoma by Mitochondrial Apoptosis Using Hydroxyapatite Nanoparticles. Int J Nanomedicine 2022; 17:3691-3710. [PMID: 36046839 PMCID: PMC9423115 DOI: 10.2147/ijn.s375950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/18/2022] [Indexed: 11/23/2022] Open
Abstract
Background In recent years, using hydroxyapatite nanoparticles (HANPs) for tumor therapy attracted increasing attention because HANPs were found to selectively suppress the growth of tumor cells but exhibit ignorable toxicity to normal cells. Purpose This study aimed to investigate the capacities of HANPs with different morphologies and particle sizes against two kinds of osteosarcoma (OS) cells, human OS 143B cells and rat OS UMR106 cells. Methods Six kinds of HANPs with different morphologies and particle sizes were prepared by wet chemical method. Then, the antitumor effect of these nanoparticles was characterized by means of in vitro cell experiments and in vivo tumor-bearing mice model. The underlying antitumor mechanism involving mitochondrial apoptosis was also investigated by analysis of intracellular calcium, expression of apoptosis-related genes, reactive oxygen species (ROS), and the endocytosis efficiency of the particles in tumor cells. Results Both in vitro cell experiments and in vivo mice model evaluation revealed the anti-OS performance of HANPs depended on the concentration, morphology, and particle size of the nanoparticles, as well as the OS cell lines. Among the six HANPs, rod-like HANPs (R-HANPs) showed the best inhibitory activity on 143B cells, while needle-like HANPs (N-HANPs) inhibited the growth of UMR106 cells most efficiently. We further demonstrated that HANPs induced mitochondrial apoptosis by selectively raising intracellular Ca2+ and the gene expression levels of mitochondrial apoptosis-related molecules, and depolarizing mitochondrial membrane potential in tumor cells but not in MC3T3-E1, a mouse pre-osteoblast line. Additionally, the anti-OS activity of HANPs also linked with the endocytosis efficiency of the particles in the tumor cells, and their ability to drive oxidative damage and immunogenic cell death (ICD). Conclusion The current study provides an effective strategy for OS therapy where the effectiveness was associated with the particle morphology and cell line.
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Affiliation(s)
- Hongfeng Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Shuo Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Siyu Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Yuchen Hua
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Xiangfeng Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Qin Zeng
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China.,NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterials & Institute of Regulatory Science for Medical Devices & NMPA Research Base of Regulatory Science for Medical Devices, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Yong Zhou
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China
| | - Chongqi Tu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, People's Republic of China.,College of Biomedical Engineering, Sichuan University, Chengdu, 610064, People's Republic of China.,NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterials & Institute of Regulatory Science for Medical Devices & NMPA Research Base of Regulatory Science for Medical Devices, Sichuan University, Chengdu, 610064, People's Republic of China
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Guo F, Jiao Y, Du Y, Luo S, Hong W, Fu Q, Li A, Wang G, Yang G. Enzyme-responsive nano-drug delivery system for combined antitumor therapy. Int J Biol Macromol 2022; 220:1133-1145. [PMID: 35988724 DOI: 10.1016/j.ijbiomac.2022.08.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/05/2022]
Abstract
Efficient drug loading, tumor targeting, intratumoral penetration, and cellular uptake are the main factors affecting the effectiveness of drug delivery systems in oncotherapy. Based on the tumor microenvironment, we proposed to develop Curcumin (Cur)-loaded matrix metalloproteinase (MMP)-responsive nanoparticles (Cur-P-NPs) by static electricity, to enhance tumor targeting, cellular uptake, and drug loading efficiency. These nanoparticles combine the properties of both PEG-peptides (cleaved peptide + penetrating peptide) and star-shaped polyester (DPE-PCL) nanoparticles. Cur-P-NPs displayed good entrapment efficiency, drug loading and biocompatibility. Additionally, they showed an enhanced release rate, cellular uptake, and anti-proliferative activity by activating peptides under the simulated tumor microenvironment. Furthermore, intraperitoneal injection of losartan (LST) successfully enhanced intratumoral drug penetration by collagen I degradation. In vivo studies based on the systematic administration of the synergistic LST + Cur-P-NPs combination to mice confirmed that combined antitumor therapy with LST and Cur-P-NPs could further improve intratumor distribution, enhance anticancer efficacy, and reduce the toxicity and side effects. Therefore, LST + Cur-P-NPs represent a new and efficient system for clinical oncotherapy.
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Affiliation(s)
- Fangyuan Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yunlong Jiao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yinzhou Du
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shuai Luo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Weiyong Hong
- Department of Pharmacy, Taizhou Municipal Hospital Affiliated to Taizhou University, Taizhou 318000, China
| | - Qiafan Fu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Aiqin Li
- Zhejiang Share Bio-pharm Co., Ltd, Hangzhou 310019, China
| | - Guoping Wang
- Zhejiang Dayang Biotech Group Co., Ltd, Jiande 311600, China
| | - Gensheng Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China.
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Kargozar S, Mollazadeh S, Kermani F, Webster TJ, Nazarnezhad S, Hamzehlou S, Baino F. Hydroxyapatite Nanoparticles for Improved Cancer Theranostics. J Funct Biomater 2022; 13:100. [PMID: 35893468 PMCID: PMC9326646 DOI: 10.3390/jfb13030100] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 12/12/2022] Open
Abstract
Beyond their well-known applications in bone tissue engineering, hydroxyapatite nanoparticles (HAp NPs) have also been showing great promise for improved cancer therapy. The chemical structure of HAp NPs offers excellent possibilities for loading and delivering a broad range of anticancer drugs in a sustained, prolonged, and targeted manner and thus eliciting lower complications than conventional chemotherapeutic strategies. The incorporation of specific therapeutic elements into the basic composition of HAp NPs is another approach, alone or synergistically with drug release, to provide advanced anticancer effects such as the capability to inhibit the growth and metastasis of cancer cells through activating specific cell signaling pathways. HAp NPs can be easily converted to smart anticancer agents by applying different surface modification treatments to facilitate the targeting and killing of cancer cells without significant adverse effects on normal healthy cells. The applications in cancer diagnosis for magnetic and nuclear in vivo imaging are also promising as the detection of solid tumor cells is now achievable by utilizing superparamagnetic HAp NPs. The ongoing research emphasizes the use of HAp NPs in fabricating three-dimensional scaffolds for the treatment of cancerous tissues or organs, promoting the regeneration of healthy tissue after cancer detection and removal. This review provides a summary of HAp NP applications in cancer theranostics, highlighting the current limitations and the challenges ahead for this field to open new avenues for research.
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Ekambaram R, Dharmalingam S. Design and development of biomimetic electrospun sulphonated polyether ether ketone nanofibrous scaffold for bone tissue regeneration applications: in vitro and in vivo study. J Biomater Sci Polym Ed 2022; 33:947-975. [PMID: 34985405 DOI: 10.1080/09205063.2022.2025637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/30/2021] [Accepted: 01/02/2022] [Indexed: 06/14/2023]
Abstract
Bone defect restoration remains challenging in orthopedic medical practices. In this study an attempt is carried out to probe the use of new biomimetic SPEEK (sulfonated polyether ether ketone) based nanofibrous scaffold to deliver amine functionalized hydroxyapatite nanoparticles loaded resveratrol for its potent functionality in osteogenic differentiation. SPEEK polymer with reactive functional group SO3H was synthesized through process of sulphonation reaction. Amine functionalized nanoparticles with protonated amino groups revamp the molecular interaction by the formation of hydrogen bonds that in turn intensify the bioactivity of the nanofibrous scaffold. Osteoconductive functionalized nanohydroxyapatite enhances the cell proliferation and osteogenicity with improved cell attachment and spreading. The results of FT-IR, XRD, Carbon-Silica NMR and EDX analysis confirmed the amine functionalization of the hydroxyapatite nanoparticles. Surface morphological analysis of the fabricated nanofibers through SEM and AFM analysis shows vastly interconnected porous structure that mimics the bone extracellular matrix, which enhances the cell compatibility. Cell adhesion and live dead assay of the nanoscaffolds express less cytotoxicity. Mineralization and alkaline phosphatase assay establish the osteogenic differentiation of the nanofibrous scaffold. The in vitro biocompatibility studies reveal that the fabricated scaffold was osteo-compatible with MG63 cell lines. Hemocompatibility study further proved that the designed biomimetic nanofibrous scaffold was highly suitable for bone tissue engineering. The results of in vivo analysis in zebrafish model for the fabricated nanofibers demonstrated significant increase in the caudal fin regeneration indicating mineralization of osteoblast. Thus, the commending results obtained instigate the potentiality of the composite nanofibrous scaffold as an effective biomimetic substrate for bone tissue regeneration.
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Munir MU, Salman S, Ihsan A, Elsaman T. Synthesis, Characterization, Functionalization and Bio-Applications of Hydroxyapatite Nanomaterials: An Overview. Int J Nanomedicine 2022; 17:1903-1925. [PMID: 35530974 PMCID: PMC9075913 DOI: 10.2147/ijn.s360670] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/12/2022] [Indexed: 01/12/2023] Open
Abstract
Hydroxyapatite (HA) is similar to natural bone regarding composition, and its structure favors in biomedical applications. Continuous research and progress on HA nanomaterials (HA-NMs) have explored novel fabrication approaches coupled with functionalization and characterization methods. These nanomaterials have a significant role in many biomedical areas like sustained drug and gene delivery, bio-imaging, magnetic resonance, cell separation, and hyperthermia treatment due to their promising biocompatibility. This review highlighted the HA-NMs chemical composition, recent progress in synthesis methods, characterization and surface modification methods, ion-doping, and role in biomedical applications. HA-NMs have a substantial role as drug delivery vehicles, coating material, bone implant, coating, ceramic, and composite materials. Here, we try to summarize an overview of HA-NMs with the provision of future directions.
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Affiliation(s)
- Muhammad Usman Munir
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Aljouf, 72388, Saudi Arabia
| | - Sajal Salman
- Faculty of Pharmacy, University of Central Punjab, Lahore, 54000, Pakistan
| | - Ayehsa Ihsan
- Nanobiotech Group, Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Tilal Elsaman
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Aljouf, 72388, Saudi Arabia
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Loo CY, Siew EL, Young PM, Traini D, Lee WH. Toxicity of curcumin nanoparticles towards alveolar macrophage: Effects of surface charges. Food Chem Toxicol 2022; 163:112976. [PMID: 35364129 DOI: 10.1016/j.fct.2022.112976] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 03/22/2022] [Accepted: 03/27/2022] [Indexed: 12/21/2022]
Abstract
Curcumin has been used for chronic lung diseases management due to its diversified molecular actions. However, the potential cytotoxicity which occurs in cells following the exposure to high concentrations of curcumin has been overlooked. This study evaluated the toxic events of curcumin nanoparticles (Cur-NPs) with alterable surface polarity in alveolar macrophages (NR8383). We aimed to establish the correlation between the toxicity of Cur-NPs with different surface charges and the internalization mechanisms of the NPs. Toxicity data showed that positively charged Cur-NPs (IC50: 9.77 ± 0.5 μg/mL) was the most potent against NR8383, followed by negatively charged Cur-NPs (IC50:13.33 ± 0.9 μg/mL) and neutral Cur-NPs (IC50:18.68 ± 1.2 μg/mL). Results from mitochondrial membrane potential, ATP content and intracellular ROS in NR8383 showed similar ranking to the toxicity assay. The predominant uptake pathway for positively and negatively charged Cur-NPs was via clathrin-mediated endocytosis, while neutral Cur-NPs was internalized via phagocytosis, micropinocytosis and clathrin-mediated endocytosis. Positively charged Cur-NPs mediates the cytotoxicity of NR8383 via lysosomal and mitochondrial-associated destabilization upon entry. In conclusion, the cytotoxicity of Cur-NPs on NR8383 is surface-charge dependent, which in turn is associated to the uptake pathway and localization of Cur-NPs in cells.
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Huang SM, Liu SM, Ko CL, Chen WC. Advances of Hydroxyapatite Hybrid Organic Composite Used as Drug or Protein Carriers for Biomedical Applications: A Review. Polymers (Basel) 2022; 14:polym14050976. [PMID: 35267796 PMCID: PMC8912323 DOI: 10.3390/polym14050976] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/18/2022] [Accepted: 02/24/2022] [Indexed: 12/12/2022] Open
Abstract
Hydroxyapatite (HA), especially in the form of HA nanoparticles (HANPs), has excellent bioactivity, biodegradability, and osteoconductivity and therefore has been widely used as a template or additives for drug delivery in clinical applications, such as dentistry and orthopedic repair. Due to the atomically anisotropic distribution on the preferred growth of HA crystals, especially the nanoscale rod-/whisker-like morphology, HA can generally be a good candidate for carrying a variety of substances. HA is biocompatible and suitable for medical applications, but most drugs carried by HANPs have an initial burst release. In the adsorption mechanism of HA as a carrier, specific surface area, pore size, and porosity are important factors that mainly affect the adsorption and release amounts. At present, many studies have developed HA as a drug carrier with targeted effect, porous structure, and high porosity. This review mainly discusses the influence of HA structures as a carrier on the adsorption and release of active molecules. It then focuses on the benefits and effects of different types of polymer-HA composites to re-examine the proteins/drugs carry and release behavior and related potential clinical applications. This literature survey can be divided into three main parts: 1. interaction and adsorption mechanism of HA and drugs; 2. advantages and application fields of HA/organic composites; 3. loading and drug release behavior of multifunctional HA composites in different environments. This work also presents the latest development and future prospects of HA as a drug carrier.
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Affiliation(s)
- Ssu-Meng Huang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (S.-M.H.); (S.-M.L.); (C.-L.K.)
| | - Shih-Ming Liu
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (S.-M.H.); (S.-M.L.); (C.-L.K.)
| | - Chia-Ling Ko
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (S.-M.H.); (S.-M.L.); (C.-L.K.)
| | - Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (S.-M.H.); (S.-M.L.); (C.-L.K.)
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence:
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Verma G, Gajipara A, Shelar SB, Priyadarsini K, Hassan P. Development of water-dispersible gelatin stabilized hydroxyapatite nanoformulation for curcumin delivery. J Drug Deliv Sci Technol 2021; 66:102769. [DOI: 10.1016/j.jddst.2021.102769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abd El-Hady MM, Farouk A, Saeed SES, Zaghloul S. Antibacterial and UV Protection Properties of Modified Cotton Fabric Using a Curcumin/TiO 2 Nanocomposite for Medical Textile Applications. Polymers (Basel) 2021; 13:4027. [PMID: 34833326 PMCID: PMC8619831 DOI: 10.3390/polym13224027] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 01/25/2023] Open
Abstract
Medical textiles are one of the most rapidly growing parts of the technical textiles sector in the textile industry. This work aims to investigate the medical applications of a curcumin/TiO2 nanocomposite fabricated on the surface of cotton fabric. The cotton fabric was pretreated with three crosslinking agents, namely citric acid, 3-Chloro-2-hydroxypropyl trimethyl ammonium chloride (Quat 188) and 3-glycidyloxypropyltrimethoxysilane (GPTMS), by applying the nanocomposite to the modified cotton fabric using the pad-dry-cure method. The chemistry and morphology of the modified fabrics were examined by Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and scanning electron microscopy. In addition, the chemical mechanism for the nanocomposite-modified fabric was reported. UV protection (UPF) and antibacterial properties against Gram-positive S. aureus and Gram-negative E. coli bacterial strains were investigated. The durability of the fabrics to 20 washing cycles was also examined. Results demonstrated that the nanocomposite-modified cotton fabric exhibited superior antibacterial activity against Gram-negative bacteria than Gram-positive bacteria and excellent UV protection properties. Moreover, a good durability was obtained, which was possibly due to the effect of the crosslinker used. Among the three pre-modifications of the cotton fabric, Quat 188 modified fabric revealed the highest antibacterial activity compared with citric acid or GPTMS modified fabrics. This outcome suggested that the curcumin/TiO2 nanocomposite Quat 188-modified cotton fabric could be used as a biomedical textile due to its antibacterial properties.
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Affiliation(s)
- M. M. Abd El-Hady
- National Research Centre, Institute of Textile Research and Technology, 33 El-Behoth Street, Dokki, P.O. Box 12622, Giza 11311, Egypt; or (A.F.); (S.Z.)
- Department of Physics, College of Science and Arts in Al-Asyah, Qassim University, Buraidah 51452, Saudi Arabia
| | - A. Farouk
- National Research Centre, Institute of Textile Research and Technology, 33 El-Behoth Street, Dokki, P.O. Box 12622, Giza 11311, Egypt; or (A.F.); (S.Z.)
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 62217, Saudi Arabia
| | - S. El-Sayed Saeed
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
| | - S. Zaghloul
- National Research Centre, Institute of Textile Research and Technology, 33 El-Behoth Street, Dokki, P.O. Box 12622, Giza 11311, Egypt; or (A.F.); (S.Z.)
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Pooresmaeil M, Javanbakht S, Namazi H, Shaabani A. Application or function of citric acid in drug delivery platforms. Med Res Rev 2021; 42:800-849. [PMID: 34693555 DOI: 10.1002/med.21864] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 08/02/2021] [Accepted: 10/12/2021] [Indexed: 12/11/2022]
Abstract
Nontoxic materials with natural origin are promising materials in the designing and preparation of the new drug delivery systems (DDSs). Today's, citric acid (CA) has attracted a great deal of attention because of its special features; green nature, biocompatibility, low price, biodegradability, and commercially available property. So, CA has been employed in the preparation of the various platforms to induce a suitable property on their structure. Recently, several research groups investigated the CA-based platforms in different forms like tablets, dendrimers, hyperbranched polymers, (co)polymer, hydrogels, and nanoparticles as efficient DDSs. By considering an increasing amount of published articles in this field, for the first time, in this review, an overview of the published works regarding CA applications in the design of various DDSs is presented with a detailed and insightful discussion.
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Affiliation(s)
- Malihe Pooresmaeil
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | | | - Hassan Namazi
- Polymer Research Laboratory, Department of Organic and Biochemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.,Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science, Tabriz, Iran
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
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Zheng B, Wu Q, Jiang Y, Hou M, Zhang P, Liu M, Zhang L, Li B, Zhang C. One-pot synthesis of 68Ga-doped ultrasmall gold nanoclusters for PET/CT imaging of tumors. Mater Sci Eng C Mater Biol Appl 2021; 128:112291. [PMID: 34474842 DOI: 10.1016/j.msec.2021.112291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 06/19/2021] [Accepted: 06/28/2021] [Indexed: 10/20/2022]
Abstract
Gold nanoclusters (AuNCs) have attracted much attention for tumor theranostics in recent years because of their ability of renal clearance and to escape the reticuloendothelial system (RES) sequestration. In this study, we presented a novel method to synthesize 68Ga-doped (labeled) AuNCs by simultaneous reduction of 68GaCl3 and HAuCl4 by glutathione. As synthesized 68Ga-doped, glutathione-coated AuNCs (68Ga-GSH@AuNCs) were ultrasmall in size (<2 nm), highly stable under physiological conditions and renally clearable, and had high efficiency for tumor targeting. To demonstrate the universality of this 68Ga labeling method and further enhance tumor targeting efficiency, arginine-glycine-aspartate (RGD)-containing peptide was introduced as co-reductant to synthesize RGD peptide and glutathione co-coated, 68Ga-labeled AuNCs (68Ga-RGD-GSH@AuNCs). Introduction of RGD peptide did not interfere the synthesis process but significantly enhanced the tumor targeting efficiency of the AuNCs. Our study demonstrated that it was feasible to label AuNCs with gallium-68 by direct reduction of the radioisotope and HAuCl4 with reductant peptides, holding a great potential for clinical translation for PET/CT detection of tumors.
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Affiliation(s)
- Benchao Zheng
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Qinghe Wu
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yifei Jiang
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Mengfei Hou
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Pengli Zhang
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Meirong Liu
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Lu Zhang
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Biao Li
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Chunfu Zhang
- Department of Nuclear Medicine, Rui Jin Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
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18
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Lee WH, Rohanizadeh R, Loo CY. In situ functionalizing calcium phosphate biomaterials with curcumin for the prevention of bacterial biofilm infections. Colloids Surf B Biointerfaces 2021; 206:111938. [PMID: 34198233 DOI: 10.1016/j.colsurfb.2021.111938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/20/2021] [Accepted: 06/22/2021] [Indexed: 01/04/2023]
Abstract
This study developed a novel bioactive bone substitute (hydroxyapatite, HA) with improved anti-biofilm activity by functionalizing with curcumin (anti-biofilm compound) which provide sufficient flux of curcumin concentration for 14 days. The released curcumin acts to inhibit biofilm formation and control the number of viable planktonic cells simultaneously. To prepare curcumin-functionalized HA, different concentrations of curcumin (up to 3% w/v) were added simultaneously during the precipitation process of HA. The highest loading (50 mg/g HA) of curcumin onto HA was achieved with 2% w/v of curcumin. Physicochemical characterizations of curcumin-functionalized HA composites revealed that curcumin was successfully incorporated onto HA. Curcumin was sustainably released over 14 days, while higher curcumin release was observed in acidic condition (pH 4.4) compared to physiological (pH 7.4). The cytotoxicity assays revealed that no significant difference on bone cells growth on curcumin-functionalized HA and non-functionalized HA. Curcumin-functionalized HA was effective to inhibit bacterial cell attachment and subsequent biofilm maturation stages. The anti-biofilm effect was stronger against Staphylococcus aureus compared to Pseudomonas aeruginosa. The curcumin-functionalized HA composite significantly delayed the maturation of S. aureus compared to non-functionalized HA in which microcolonies of cells only begin to appear at 96 h. Up to 3.0 log reduction in colony forming unit (CFU)/mL of planktonic cells was noted at 24 h of incubation for both microorganisms. Thus, in this study we have suggested that curcumin loaded HA could be an alternative antimicrobial agent to control the risk of infections in post-surgical implants.
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Affiliation(s)
- Wing-Hin Lee
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur (RCMP UniKL), 30450, Ipoh, Perak, Malaysia
| | - Ramin Rohanizadeh
- Research Institute McGill University Research Centre (RI-MUHC), Montreal, QC, Canada
| | - Ching-Yee Loo
- Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur (RCMP UniKL), 30450, Ipoh, Perak, Malaysia.
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Hemmati K, Ahmadi Nasab N, Hesaraki S, Nezafati N. In vitro evaluation of curcumin-loaded chitosan-coated hydroxyapatite nanocarriers as a potential system for effective treatment of cancer. J Biomater Sci Polym Ed 2021; 32:1267-1287. [PMID: 33820489 DOI: 10.1080/09205063.2021.1910920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Nanotechnology has many potential applications in cancer treatment. For example, nano-drug delivery systems (NDDS) with high bioavailability, biodegradability, and biocompatibility have been developed, in order to increase the therapeutic effects of anticancer drugs. Among these NDDS, high-performance hydroxyapatite (HA) nanoparticles are rapidly advancing in the targeted cancer treatment due to their numerous benefits. Curcumin is an herbal metabolite that acts as a chemical inhibitor through the inhibition of tumor cells and the progression of many cancers. However, the poor bioavailability of curcumin is the most important challenge in using this substance. In this study, HA nanoparticles coated by chitosan were used as a pH-sensitive biopolymer to improve the efficiency and bioavailability of curcumin. For this purpose, HA nanoparticles were first synthesized by the sol-gel method. Then, a layer of chitosan was coated on it, and the curcumin drug was encapsulated in the nanocarrier, under controlled conditions. Techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) were used to characterize the nanocarriers. In the second part, nano-drugs prepared by various bioassays were examined. For this purpose, the rate of cytotoxicity by the methyl-thiazol-tetrazolium (MTT) assay and the rate of apoptosis induction by the acridine orange and ethidium bromide (AO/EB) staining method on the brain carcinoma U87MG cell line were investigated.
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Affiliation(s)
- Katayon Hemmati
- Hormoz Research Center, University of Hormozgan, Bandar Abbas, Iran.,Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj, Iran
| | | | - Saeed Hesaraki
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj, Iran
| | - Nader Nezafati
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj, Iran
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20
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Li J, Liu M, Qiu Y, Gan Y, Jiang H, Liu B, Wei H, Ma N. Urchin-like Hydroxyapatite/Graphene Hollow Microspheres as pH-Responsive Bone Drug Carriers. Langmuir 2021; 37:4137-4146. [PMID: 33813823 DOI: 10.1021/acs.langmuir.0c03640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Hydroxyapatite (HA) is the main inorganic component of human bones and teeth. It has good biocompatibility and bioactivity, which promotes its good application prospects in the field of bone drug carriers. In this study, tetraethylenepentamine-graphene (rGO-TEPA)/CaCO3:HA composite microspheres were prepared via microwave hydrothermal synthesis using rGO-TEPA/CaCO3 solid microspheres as intermediates. Furthermore, the incompletely transformed CaCO3 was removed by soaking in a citric acid buffer to obtain rGO-TEPA/HA hollow composite microspheres. The two types of as-prepared composite microspheres exhibited sea urchin-like structures, large BET surface areas, and good dispersibility. Mouse preosteoblast cells (MC3T3-E1) were used for in vitro cytotoxicity experiments. The in vitro cell viability test showed that the two composite drug carriers exhibited noncytotoxicity. Moreover, the doxorubicin (DOX) loading and releasing investigations revealed that the two types of prepared carriers had mild storage-release behaviors and good pH responsiveness. Hence, these rGO-TEPA/HA hollow microspheres have promising applications as bone drug carriers.
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Affiliation(s)
- Jie Li
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology, 300222 Tianjin, China
| | - Miaomiao Liu
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology, 300222 Tianjin, China
| | - Yujuan Qiu
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology, 300222 Tianjin, China
| | - Yuanjing Gan
- College of Light Industry Science and Engineering, Tianjin University of Science and Technology, 300222 Tianjin, China
| | - Hongkun Jiang
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Boyue Liu
- School of Environmental and Municipal Engineering, Tianjin Chengjian University, 300384 Tianjin, China
| | - Hao Wei
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 150001 Harbin, China
| | - Ning Ma
- Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, 150001 Harbin, China
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21
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Lee WH, Loo CY, Traini D, Young PM. Development and Evaluation of Paclitaxel and Curcumin Dry Powder for Inhalation Lung Cancer Treatment. Pharmaceutics 2020; 13:E9. [PMID: 33375181 DOI: 10.3390/pharmaceutics13010009] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022] Open
Abstract
Despite the effort to develop efficient targeted drug delivery for lung cancer treatment, the outcome remains unsatisfactory with a survival rate of 15% after 5 years of diagnosis. Inhalation formulation is an ideal alternative that could ensure the direct deposition of chemotherapeutics to the lungs. However, the design of an inhalable formulation that could simultaneously achieve a high local chemotherapeutic dose to the solid tumor and exert low pulmonary toxicities is a challenge, as the presence of 10–30% of chemotherapeutics in the lung is sufficient to induce toxicity. Therefore, this study aimed to develop a simple dry powder inhalation (DPI) formulation containing a model chemotherapeutic agent (paclitaxel, PTX) and a natural antioxidant (curcumin, CUR) that acts to protect healthy lung cells from injury during direct lung delivery. The co-jet-milling of CUR and PTX resulted in formulations with suitable aerosol performance, as indicated in the high fine particle fractions (FPF) (>60%) and adequate mass median aerodynamic diameter (MMAD). The CUR/PTX combination showed a more potent cytotoxic effect against lung cancer cells. This is evident from the induction of apoptosis/necrotic cell death and G2/M cell cycle arrests in both A549 and Calu-3 cells. The increased intracellular ROS, mitochondrial depolarization and reduced ATP content in A549 and Calu-3 cells indicated that the actions of CUR and PTX were associated with mitochondrial oxidative stress. Interestingly, the presence of CUR is crucial to neutralize the cytotoxic effects of PTX against healthy cells (Beas-2B), and this is dose-dependent. This study presents a simple approach to formulating an effective DPI formulation with preferential cytotoxicity towards lung cancer.
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22
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Cristina Oliveira Neves I, Aparecida Rodrigues A, Teixeira Valentim T, Cristina Freitas de Oliveira Meira A, Henrique Silva S, Ayra Alcântara Veríssimo L, Vilela de Resende J. Amino acid-based hydrophobic affinity cryogel for protein purification from ora-pro-nobis (Pereskia aculeata Miller) leaves. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1161:122435. [PMID: 33246278 DOI: 10.1016/j.jchromb.2020.122435] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/17/2020] [Accepted: 10/30/2020] [Indexed: 11/28/2022]
Abstract
The surfaces of the polyacrylamide cryogels were coated with L-tryptophan (cryogel-Trp) or L-phenylalanine (cryogel-Phe) to enhance crude leaf extract-derived ora-pro-nobis (OPN) protein binding via pseudo-specific hydrophobic interactions. Cryogels functionalized with amino acids were prepared and characterized through morphological, hydrodynamic, and thermal analyses. The adsorption capacities of cryogel-Phe and cryogel-Trp were evaluated in terms of type (sodium sulfate or sodium phosphate) and concentration (0.02 or 0.10 mol∙L-1) of saline solution, pH (4.0, 5.5, or 7.0), and NaCl concentration (0.0 or 0.5 mol∙L-1). The cryogel-Phe presented a higher adsorptive capacity, achieving its maximum value (q = 92.53 mg∙g-1) when the crude OPN crude leaf extract was diluted in sodium sulfate 0.02 mol∙L-1 + NaCl 0.50 mol∙L-1, at pH = 7.0. The dilution rate significantly (p < 0.05) affected the recovered protein amount after the adsorption and elution processes, reaching 94.45% when the feedstock solution was prepared with a crude extract 5 times. The zeta potential for the eluted OPN proteins was 5.76 mV (pH = 3.23) for both dilution rates. The secondary structure composition mainly included β-sheets (46.50%) and α-helices (13.93%). The cryogel-Phe exhibited interconnected pores ranging 20-300 μm in size, with a Young modulus of 1.51 MPa, and thermal degradation started at 230 °C. These results indicate that the cryogel-Phe exhibited satisfactory properties as promising chromatography support for use in high-throughput purification of crude leaf extract-derived OPN proteins.
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Affiliation(s)
| | | | | | | | - Sérgio Henrique Silva
- Department of Food Science, Federal University of Lavras, Lavras, Minas Gerais 37200-900, Brazil
| | | | - Jaime Vilela de Resende
- Department of Food Science, Federal University of Lavras, Lavras, Minas Gerais 37200-900, Brazil
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Coker-Gurkan A, Ozakaltun B, Akdeniz BS, Ergen B, Obakan-Yerlikaya P, Akkoc T, Arisan ED. Proinflammatory cytokine profile is critical in autocrine GH-triggered curcumin resistance engulf by atiprimod cotreatment in MCF-7 and MDA-MB-231 breast cancer cells. Mol Biol Rep 2020; 47:8797-8808. [PMID: 33130987 DOI: 10.1007/s11033-020-05928-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/16/2020] [Indexed: 01/01/2023]
Abstract
Active growth hormone (GH) signaling triggers cellular growth and invasion-metastasis in colon, breast, and prostate cancer. Curcumin, an inhibitor of NF-ҡB pathway, is assumed to be a promising anti-carcinogenic agent. Atiprimod is also an anti-inflammatory, anti-carcinogenic agent that induces apoptotic cell death in hepatocellular carcinoma, multiple myeloma, and pituitary adenoma. We aimed to demonstrate the potential additional effect of atiprimod on curcumin-induced apoptotic cell death via cytokine expression profiles in MCF-7 and MDA-MB-231 cells with active GH signaling. The effect of curcumin and/or atiprimod on IL-2, IL-4, and IL-17A levels were measured by ELISA assay. MTT cell viability, trypan blue exclusion, and colony formation assays were performed to determine the effect of combined drug exposure on cell viability, growth, and colony formation, respectively. Alteration of the NF-ҡB signaling pathway protein expression profile was determined following curcumin and/or atiprimod exposure by RT-PCR and immunoblotting. Finally, the effect of curcumin with/without atiprimod treatment on Reactive Oxygen Species (ROS) generation and apoptotic cell death was examined by DCFH-DA and Annexin V/PI FACS flow analysis, respectively. Autocrine GH-mediated IL-6, IL-8, IL-10 expressions were downregulated by curcumin treatment. Atiprimod co-treatment increased the inhibitory effect of curcumin on cell viability, proliferation and also increased the curcumin-triggered ROS generation in each GH+ breast cancer cells. Combined drug exposure increased apoptotic cell death through acting on IL-2, IL-4, and IL-17A secretion. Forced GH-triggered curcumin resistance might be overwhelmed by atiprimod and curcumin co-treatment via modulating NF-ҡB-mediated inflammatory cytokine expression in MCF-7 and MDA-MB-231 cells.
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Affiliation(s)
- Ajda Coker-Gurkan
- Science and Letter Faculty, Department of Molecular Biology and Genetics, Istanbul Kültür University, Atakoy Campus, 34156, Istanbul, Turkey.
| | - Buse Ozakaltun
- Science and Letter Faculty, Department of Molecular Biology and Genetics, Istanbul Kültür University, Atakoy Campus, 34156, Istanbul, Turkey
| | - Berre-Serra Akdeniz
- Science and Letter Faculty, Department of Molecular Biology and Genetics, Istanbul Kültür University, Atakoy Campus, 34156, Istanbul, Turkey
| | - Berfin Ergen
- Science and Letter Faculty, Department of Molecular Biology and Genetics, Istanbul Kültür University, Atakoy Campus, 34156, Istanbul, Turkey
| | - Pınar Obakan-Yerlikaya
- Science and Letter Faculty, Department of Molecular Biology and Genetics, Istanbul Kültür University, Atakoy Campus, 34156, Istanbul, Turkey
| | - Tunc Akkoc
- Department of Pediatric Allergy-Immunology, School of Medicine, Marmara University, Istanbul, Turkey
| | - Elif-Damla Arisan
- Institution of Biotechnology, Gebze Technical University, Gebze, Turkey
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He J, Hu X, Cao J, Zhang Y, Xiao J, Peng L, Chen D, Xiong C, Zhang L. Chitosan-coated hydroxyapatite and drug-loaded polytrimethylene carbonate/polylactic acid scaffold for enhancing bone regeneration. Carbohydr Polym 2020; 253:117198. [PMID: 33278972 DOI: 10.1016/j.carbpol.2020.117198] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 09/23/2020] [Accepted: 10/06/2020] [Indexed: 12/21/2022]
Abstract
Biocompatible polymers and drug-delivery scaffolds have driven development in bone regeneration. In this study, we fabricated a chitosan (CS)-coated polytrimethylene carbonate (PTMC)/polylactic acid (PLLA)/oleic acid-modified hydroxyapatite (OA-HA)/vancomycin hydrochloride (VH) microsphere scaffold for drug release with excellent biocompatibility. The incorporation of PLLA, OA-HA, and VH into PTMC microspheres not only slowed the biodegradability of the scaffold but also enhanced its mechanical properties and surface properties. Moreover, the CS coating stimulated extensive adhesion of osteoblasts before OA-HA incorporation, which facilitated the controlled release of OA-HA. The scaffolds were characterized via scanning electron microscopy, in vitro comprehensive performance testing, cell culturing, and microcomputer tomography scanning. The results indicated that the surface of the composite microsphere scaffold was suitable for osteoblast adhesion. Additionally, the release of OA-HA stimulated osteogenic proliferation. Our findings suggest that the CS-PTMC/PLLA/OA-HA/VH microsphere scaffold is promising for bone tissue engineering applications.
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Affiliation(s)
- Jian He
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xulin Hu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianfei Cao
- School of Materials and Environmental Engineering, Chengdu Technology University, Chengdu 610041, China
| | - Yu Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianping Xiao
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China
| | - liJun Peng
- Changzhou Institude of Chemistry, Changzhou, Jiangsu 213000, China
| | - Dongliang Chen
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengdong Xiong
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lifang Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, Sichuan 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Eskitoros-Togay ŞM, Bulbul YE, Dilsiz N. Combination of nano-hydroxyapatite and curcumin in a biopolymer blend matrix: Characteristics and drug release performance of fibrous composite material systems. Int J Pharm 2020; 590:119933. [PMID: 33011251 DOI: 10.1016/j.ijpharm.2020.119933] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/24/2020] [Accepted: 09/26/2020] [Indexed: 12/20/2022]
Abstract
The design of appropriate materials is required for biomedical applications (e.g. drug delivery systems) in improving people's health care processes. This study focused on the incorporation of nanosized hydroxyapatite (n-HA) with different ratios (ranging from 0.1 wt% to 0.5 wt%) into the poly (ε-caprolactone)/ poly (ethylene oxide) (PCL/PEO) blend matrix loaded or unloaded with curcumin. Composite fibrous material systems were successfully fabricated by the electrospinning technique without the occurrence of bead defects. In addition to the morphological and physicochemical properties of the material systems obtained, the in vitro curcumin release performance was investigated. Further, anti-cancer activity against breast cancer cell line (MCF-7) was examined by MTT assay. Fourier transform infrared spectroscopy and X-ray diffraction characterizations of the fabricated fibrous materials exhibited the interaction of PCL/PEO, n-HA, and curcumin. The 0.3 wt% n-HA incorporated fibrous materials showed a much slower curcumin release manner along with the highest cytotoxicity against MCF-7 cells. The findings obtained from this research are expected to contribute to the appropriate design of nanofiber-based composite materials not only for drug delivery systems but also for the fabrication of biomaterials toward different biomedical applications.
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Wu Q, Gao H, Vriesekoop F, Liu Z, He J, Liang H. Calcium phosphate coated core-shell protein nanocarriers: Robust stability, controlled release and enhanced anticancer activity for curcumin delivery. Materials Science and Engineering: C 2020; 115:111094. [DOI: 10.1016/j.msec.2020.111094] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/13/2020] [Accepted: 05/12/2020] [Indexed: 12/13/2022]
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Barbosa AA, Júnior SA, Mendes RL, de Lima RS, de Vasconcelos Ferraz A. Multifunctional hydroxyapatite with potential for application in theranostic nanomedicine. Mater Sci Eng C Mater Biol Appl 2020; 116:111227. [PMID: 32806238 DOI: 10.1016/j.msec.2020.111227] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 12/18/2022]
Abstract
Although several materials are being studied for the development of theranostic systems, factors such as high costs, low yield, stability of nanoparticles (NPs) and toxicity-related issues hinder their application in medicine. Thus, this paper introduces the synthesis of a theranostic system composed of hydroxyapatite (HAp) functionalized with europium (Eu3+) and zinc oxide (ZnO) NPs, resulting in a low-cost material that presents biocompatibility, luminescence, antibacterial activity and whose synthesis method is simple. The Eu3+ - doped HAp was obtained through the precipitation method and the functionalization with ZnO occurred in the subsequent stage through the solid-state reaction method. The resulting material, [Ca9.5Eu0.5(PO4)6(OH)2@ZnO], was characterized by several techniques where the photoluminescence spectrum exhibited sharp peaks at the 4fN → 4fN transitions typical of Eu3+ ions, while tests with bacteria proved its antibacterial property. The crystal structure obtained by X-ray diffraction confirmed HAp as the major phase. The multifunctional HAp (HAp:Eu@ZnO) was considered as hemocompatible, exhibiting an in vitro hemolysis ratio of 1.85 (±0.2) %, and its loading potential, tested for two antitumor drugs, showed an adsorption capacity of 43.0 ± 3.6% for 5-Fluorouracil and 84.0 ± 4.0% for curcumin. The cytotoxicity of the system as well as its use as a support for drugs was analyzed through in vitro assays with tumor cells from sarcoma 180 in mice. The results confirmed that HAp:Eu@ZnO is non-toxic to cells and its potential for antineoplastic vectorization is increased by cell internalization due to endocytosis, with up to 39.0% of cancer cell deaths having been observed at the concentrations and period evaluated.
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Affiliation(s)
- Amanda Alves Barbosa
- Federal University of Pernambuco, Av. Jorn. Aníbal Fernandes, s/n°, Cidade Universitária, Recife, PE, Brazil; Federal University of San Francisco Valley, Av. Antonio Carlos Magalhães 310, Juazeiro, BA, Brazil.
| | - Severino Alves Júnior
- Federal University of Pernambuco, Av. Jorn. Aníbal Fernandes, s/n°, Cidade Universitária, Recife, PE, Brazil.
| | - Rosemairy Luciane Mendes
- Federal University of San Francisco Valley, Av. Antonio Carlos Magalhães 310, Juazeiro, BA, Brazil.
| | - Ricardo Santana de Lima
- Federal University of San Francisco Valley, Av. Antonio Carlos Magalhães 310, Juazeiro, BA, Brazil.
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Pooresmaeil M, Namazi H. Facile preparation of pH-sensitive chitosan microspheres for delivery of curcumin; characterization, drug release kinetics and evaluation of anticancer activity. Int J Biol Macromol 2020; 162:501-11. [PMID: 32574741 DOI: 10.1016/j.ijbiomac.2020.06.183] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 12/17/2022]
Abstract
Curcumin (CUR) is a lowly water-soluble natural polyphenol with chemopreventive and chemotherapeutic activities. Hence, to achieve the system with good CUR loading ability, porous MIL-88 (Fe) was prepared in the presence of the presynthesized graphene quantum dots (GQDs) (GQDs@MIL-88 (Fe)). In the following, CUR loaded in the fabricated GQDs@MIL-88 (Fe) nanohybrid. The characterization techniques; Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), scanning electron microscope (SEM), photoluminescence (PL), and Brunauer-Emmett-Teller (BET) analysis showed success in the synthesis of GQDs@MIL-88 (Fe). Moreover, the FT-IR analysis displayed the loading of CUR and the formation of CUR@GQDs@MIL-88(Fe). Chitosan (CS) was used as a green coating to enhance the biocompatibility of the prepared system (CS/CUR@GQDs@MIL-88(Fe). The fabricated microspheres showed pH-sensitive swelling behavior and released 38.3% of CUR in pH 5.0 which is better fitted with the First-order kinetic model (R2 = 0.9726). In comparison with CUR@GQDs@MIL-88(Fe), the MTT and DAPI assay exhibited less toxic effect for CS/CUR@GQDs@MIL-88(Fe) against MDA-MB 231 cells. Moreover, the safety of the CS/CUR@GQDs@MIL-88(Fe) confirmed after incubation against MCF 10A as a model of the normal cell line. The results conveyed a new concept that the CS/CUR@GQDs@MIL-88(Fe) is a potential candidate for using as a biocompatible carrier with controlled drug delivery ability.
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Zha L, Wang B, Qian J, Fletcher B, Zhang C, Dong Q, Chen W, Hong L. Preparation, characterization and preliminary pharmacokinetic study of pH-sensitive Hydroxyapatite/Zein nano-drug delivery system for doxorubicin hydrochloride. ACTA ACUST UNITED AC 2020; 72:496-506. [PMID: 31975457 DOI: 10.1111/jphp.13223] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/16/2019] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Zein nanoparticles (Zein NPs) were used as a hydroxyapatite (HA) biomineralization template to generate HA/Zein NPs. Doxorubicin hydrochloride (DOX) was loaded on HA/Zein NPs (HA/Zein-DOX NPs) to improve its pH-sensitive release, bioavailability and decrease cardiotoxicity. METHODS HA/Zein-DOX NPs were prepared by phase separation and biomimetic mineralization method. Particle size, polydispersity index (PDI), Zeta potential, transmission electron microscope, X-ray diffraction and Fourier-transform infrared spectroscopy of HA/Zein-DOX NPs were characterized. The nanoparticles were then evaluated in vitro and in vivo. KEY FINDINGS The small PDI and high Zeta potential demonstrated that HA/Zein-DOX NPs were a stable and homogeneous dispersed system and that HA was mineralized on Zein-DOX NPs. HA/Zein-DOX NPs showed pH-sensitive release. Compared with free DOX, HA/Zein-DOX NPs increased cellular uptake which caused 7 times higher in-vitro cytotoxicity in 4T1 cells. Pharmacokinetic experiments indicated the t1/2β and AUC0- t of HA/Zein-DOX NPs were 2.73- and 3.12-fold higher than those of DOX solution, respectively. Tissue distribution exhibited HA/Zein-DOX NPs reduced heart toxicity with lower heart targeting efficiency (18.58%) than that of DOX solution (37.62%). CONCLUSION In this study, HA/Zein-DOX NPs represented an antitumour drug delivery system for DOX in clinical tumour therapy with improved bioavailability and decreased cardiotoxicity.
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Affiliation(s)
- Liqiong Zha
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China
| | - Beilei Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China
| | - Jiajia Qian
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China
| | - Brock Fletcher
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Caiyun Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China.,Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA
| | - Qiannian Dong
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China
| | - Weidong Chen
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China
| | - Lufeng Hong
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medicine, Hefei, China
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You Y, KeqiQu, Huang Z, Ma R, Shi C, Li X, Liu D, Dong M, Guo Z. Sodium alginate templated hydroxyapatite/calcium silicate composite adsorbents for efficient dye removal from polluted water. Int J Biol Macromol 2019; 141:1035-1043. [DOI: 10.1016/j.ijbiomac.2019.09.082] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 11/30/2022]
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Shi Y, Ma W, Gao M, Yang Y. Development of curcumin-loaded methoxy poly(ethylene glycol)-block- poly(caprolactone)-block-poly(1, 4, 8-Trioxa [4.6] spiro-9-undecanone) nanoparticles and studies on their in vitro anti-tumor activities. Colloids Surf B Biointerfaces 2019; 184:110525. [DOI: 10.1016/j.colsurfb.2019.110525] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 12/14/2022]
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Abstract
Due to the chemical similarity to natural calcified tissues (bones and teeth) of mammals, calcium orthophosphates (abbreviated as CaPO4) appear to be good biomaterials for creation of artificial bone grafts. However, CaPO4 alone have some restrictions, which limit their biomedical applications. Various ways have been developed to improve the properties of CaPO4 and their functionalization is one of them. Namely, since surfaces always form the interfaces between implanted grafts and surrounding tissues, the state of CaPO4 surfaces plays a crucial role in the survival of bone grafts. Although the biomedically relevant CaPO4 possess the required biocompatible properties, some of their properties could be better. For example, functionalization of CaPO4 to enhance cell attachment and cell material interactions has been developed. In addition, to prepare stable formulations from nanodimensional CaPO4 particles and prevent them from agglomerating, the surfaces of CaPO4 particles are often functionalized by sorption of special chemicals. Furthermore, there are functionalizations in which CaPO4 are exposed to various types of physical treatments. This review summarizes the available knowledge on CaPO4 functionalizations and their biomedical applications.
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